Microfossil assemblages from the Eocene Sylhet Limestone and Kopili Formation, Sylhet District, northeast Bangladesh
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Geology topics
Publications and source records attributed to M.R. Khan.
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Coal mine tunnels and surface sections in the Ghazij Shale of early Eocene age in the coal field near Quetta, Pakistan, were sampled in detail in order to make a foraminiferal analysis. This analysis and consequent correlations suggest that the coal seams are lenticular and have little lateral continuity. The planktonic Foraminifera date the geologic age of the coal-bearing sequences as early Eocene. Other Foraminifera indicate the shallow-water environment of deposition of the coal. Evidence is presented to show that coal was deposited in a series of unconnected swamps or marshes.